Gem Focus March 2022: Alexandrite; emerald by day and ruby by night…

Posted on March 15, 2022 by Çiğdem Lüle, PhD, FGA, GIA GG, DGA

Alexandrite is the variety of chrysoberyl that exhibits a change of color from blue-green hues in daylight into purple-red hues in incandescent light. It is arguably one of the rarest of all gemstones. Extra fine…

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